【英语时差8,16】海浪的形成原理
时间：2019-02-23 作者：英语课 分类：英语时差8，16
英语课
Those waves hitting the sand actually begin far out at sea. And it doesn’t take much to get them going. A little wind will do the trick. First the wind blows over the surface of the water, generating the little ripples 1 you can see just by blowing across a panful of water. If that’s all that happens, the ripples merely shimmer 2 around on the surface. But a stronger wind can cause these little ripples to merge 3 with other ripples and become larger. Eventually these combinations grow large enough to become what most folks would call a wave. Small waves have the ability to combine with other waves that have a similar frequency. “Frequency” here just means the time it takes for the crest 4 of a wave to pass and the next one to take its place. It’s pretty much a coincidence when one wave happens to meet another that matches its frequency. But once you have a match, the two combine to form a single, larger wave. Just keep up this process to see how even a moderate amount of wind can make waves.
逐渐扩散的感觉( ripple的名词复数 )
- The moon danced on the ripples. 月亮在涟漪上舞动。
- The sea leaves ripples on the sand. 海水在沙滩上留下了波痕。
v./n.发微光，发闪光；微光
- The room was dark,but there was a shimmer of moonlight at the window.屋子里很黑，但靠近窗户的地方有点微光。
- Nor is there anything more virginal than the shimmer of young foliage.没有什么比新叶的微光更纯洁无瑕了。
v.(使)结合，(使)合并，(使)合为一体
- I can merge my two small businesses into a large one.我可以将我的两家小商店合并为一家大商行。
- The directors have decided to merge the two small firms together.董事们已决定把这两家小商号归并起来。